Artículo
Exceptional points of the eigenvalues of parameter-dependent Hamiltonian operators
Fecha de publicación:
01/2021
Editorial:
Springer
Revista:
European Physical Journal Plus
ISSN:
2190-5444
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We calculate the exceptional points of the eigenvalues of several parameter-dependent Hamiltonian operators of mathematical and physical interest. We show that the calculation is greatly facilitated by the application of the discriminant to the secular determinant. In this way, the problem reduces to finding the roots of a polynomial function of just one variable, the parameter in the Hamiltonian operator. As illustrative examples, we consider a particle in a one-dimensional box with a polynomial potential, the periodic Mathieu equation, the Stark effect in a polar rigid rotor and in a polar symmetric top.
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Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Citación
Amore, Paolo; Fernández, Francisco Marcelo; Exceptional points of the eigenvalues of parameter-dependent Hamiltonian operators; Springer; European Physical Journal Plus; 136; 133 ; 1-2021; 1-7
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